Middle child Kim Bom (Song Ha-yoon) had a difficult childhood since her mother’s love was focused on her older brother, Eun-chul (Oh Sang-jin), and her younger sister, Eun-sol (Hwang Seung-eon). After becoming a grownup, Bom runs a laundromat named Sweden Laundry. However, she also has a supernatural power to understand the problems of those around her. With the help of her employees, Bom uses her power to solve her customers' worries through their laundry.